Traefik was written before haproxy had hot reloading configuration in 1.7 It does one thing and does it well - auto configured and discoverable lb and proxying

Traefik was written before haproxy had hot reloading configuration in 1.7 It does one thing and does it well - auto configured and discoverable lb and proxying designed to run in container environments Easy to get running, easy to know everything it can do and without much effort it gets a lot accomplished Not that nginx and HAProxy still don't have their place, but if you want to front a docker swarm or k8 stack traefik is just easy whereas nginx/haproxy have to be configured for that task